I'm a heavy Facebook user.
I've synced all my other social network accounts (Youtube, Twitter, Flickr etc.) with
my Facebook account so that friends of mine on Facebook will know whenever I've uploaded a photo, or a video, or posted a tweet.
Although I'm highly secretive with my own short films (as in, I don't upload them on Youtube for public viewing) because most of them had been circulating at the film fest circle, I don't mind sharing my own experiences with others, it's my way of keeping in touch with others, allowing others to keep track on my misadventures, and on the other hand, I can keep track on what the others were doing as well.
Many of my relatives, former schoolmates and classmates, and other people I've met throughout the course of my life are Facebook users too, and sadly, this might just be the only way for me to remain 'visible' for them (since I'm constantly flying about, it's really hard for some to keep track on where I am these days). Yes, I don't disagree that this has turned into a form of exhibitionism, and I can absolutely understand why people who crave privacy don't really like the use of Facebook.
I myself try to maintain some form of privacy too, despite having 1400+ friends, every time someone tries to add me and I cannot really recognize them, nor seem to have any mutual friends, I usually message them first and ask them to identify themselves. If there's none, I'll probably ignore the friend request.
Recently, people I've never spoken to for years have begun speaking to me via Facebook Chat, out of the blue. But the conversation is usually like this: